Commercial Steel Hollow Metal Fire-Rated Doors

Custom Metal Products manufactures UL-labeled fire-rated hollow metal doors and frame assemblies designed in compliance with NAAMM and HMMA specifications. Configured with temperature rise or steel-stiffened cores, these assemblies are engineered to satisfy stringent life-safety codes and fire-containment criteria in commercial construction, double egress corridors, and healthcare facilities.

Doors can be configured with multiple interior core options depending on performance specifications. Available core options include polystyrene, polyurethane, temperature rise cores, and steel-stiffened cores. Temperature rise cores are specifically designed to limit heat transfer in life-safety egress openings, while other options offer structural rigidity and insulation across flush or embossed panel designs.

Lead times vary by configuration and schedule program. Custom Metal Products provides quick-ship capabilities with lead times ranging from same-day or one day for select products up to standard production schedules. Standard hollow metal door lead times are seven to ten business days, while standard frame assemblies run five to seven business days.

Yes. Engineered openings can be manufactured as sidelite, transom, and window frame assemblies in 16 gauge to 12 gauge steel. These assemblies comply with UL fire-rated standards and NAAMM/HMMA specifications, supporting glazed or paneled designs, arched or radius frame profiles, and specialized double egress opening requirements.

Doors and frames are fabricated using stainless steel and A60 galvannealed steel materials. Available steel thicknesses range from 18 gauge to 12 gauge across flush and embossed panel styles. These resilient materials provide long-term corrosion resistance and durability in high-traffic commercial building installations.

Custom Metal Products provides a standard one-year warranty on commercial hollow metal doors. This warranty covers product craftsmanship and ensures compliance with specified engineering standards, UL fire-rating requirements, and structural performance criteria when installed in commercial buildings, healthcare facilities, and institutional projects according to manufacturer specifications.